The authors of this earlier paper also gave the new mothers a questionnaire asking how they felt about spending time with their offspring, whether they thought they understood their babies' signals, and whether they felt any resentment towards them.

这篇较早的论文的作者还向新妈妈们提供了一份问卷， 询问她们对与孩子共度时光的感受，她们是否认为自己理解婴儿的信号， 以及她们是否对孩子有任何怨恨。